Knife-sharpener



M H P COX KNIFE SHARPENER.'

Patented Feb.16,1897.

(No Modl.)

UNITED STATES PATENT OFFICE.

MARY II. P. COX, OF KIRKIIAM, MARYLAND.

KNIFE-SHARPENER.

SPECIFICATION forming part of Letters Patent No. 577,127, dated February16, 18??. Application iiled April 6, 1896. Serial No. 586,440. (Nomodel.)

To all whom. it may con/cern:

Be it known that I, MARY II. P. COX, a citizen of the United States,residing at Kirkham, in the county of Talbot and State of Maryland, haveinvented certain new and useful Improvements in Knife-Sharpeners; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to certain new and useful improvements inattachments for sewing-machines and other similar machines by whichknives, scissors, and the like may be easily sharpened; and it has forits object, among others, to provide a simple and cheap device readilyattached or affixed to a sewing-machine and adjustable to accommodate itto the varying widths of the table or stand to which it is to beapplied, so as not to injure or mar the table.

It comprises an adjustable base, to which is affixedavertically-adjustable standard, in which is mounted a horizontal shaft,on one end of which is a wheel having an edge of emery or other suitablesubstance, while on the other end of the said shaft is a frictionwheeladapted to engage the periphery of the fly-wheel'of the machine, bywhich a rotary movement is given to the shaft.

Other objects and advantages of the invention will hereinafter appear,and the novel features thereof will be specifically defined by theappended claim.

The invention in this instance resides in the peculiar combinations'andthe construction, arrangement, and adaptation of parts, all as morefully hereinafter described, shown in the drawings, and thenparticularly pointed out in the claim.

The invention is clearly illustrated in the accompanying drawings,which, with the letters of reference marked thereon, form a part of thisspecification, and in which- Figure l is a view showing the applicationof the invention. Fig. 2 is a plan of the adjustable base-piece. Fig. 3is a section through the same.

Like letters of reference indicate like parts throughout the severalviews.

Referring now to the details of the drawings by letter, A designates thefiy-wheel of a sewing-machine or other machine in connection with whichit is desired to employ my attachment.

B is the base-piece, formed of two parts adjustably connected togetherfor longitudinal adjustment in any convenient manner. The means forrendering this base-piece adjustable is immaterial, but may consist ofgrooves and set-screws Working therein and serving to hold the parts intheir adjusted position in a well-known way. The outer ends of thebase-piece, which constitutes a clamp, are bent under to form sort ofhooks b, as shown, which are adapted to engage opposite edges of thetable or other device to which the device is applied. Rising from onepart of this basepiece is a hollow standard C, in which is verticallyadjustably held the rod D, Which is held in its adjusted position, asbya set-screw E, and in the upper end of this rod is mounted to revolvethe horizontal shaft F, which at one end carries the friction-Wheel G,which may be of rubber or covered with rubber and preferably concave onits periphery and arranged to engage the iiy-Wheel A, as shown. On theother end of this shaft is the emerywheel H or other wheel having aperiphery of emery or other sharpening substance.

I is a hole in the top of the rod D, through which the shaft may belubricated when necessary.

The operation will be apparent and a detailed description thereof is notdeemed necessary.

Modifications in detail may be resorted to without departing from thespirit of the invention or sacrificing any of its advantages.

What is claimed as new is- The combination with the basepiece havy inghooked ends and adjustable in length, of the hollow standard rising fromsaid basepiece, the rod adjustable in said standard, the horizontalshaft mounted to revolve in said rod, the friction-Wheel on said shaftto engage a fly-wheel of a sewing-machine or the like, and a wheel onthe other end of said shaft and having an edge of sharpening 1naterial,as set forth.

'In testimony whereof I have signed this specification in the presenceof two subscrib-.

ing witnesses.

MARY II. P. COX.

Witnesses: Y

THOMAS S. l-IAYWARD, E. T. NIooLs.

ICO

